Microsoft has started to push out an update to Windows Insiders in the Release preview ring that replaces Microsoft Edge Legacy with the new Chromium-based Microsoft Edge browser. Microsoft expects to be the final release that will be delivered as the May 2020 Update. New Microsoft Edge also includes new features such as QR Code web site sharing, Collections, and vertical tabs. The new Microsoft Edge is based on Chromium, which is the most widely supported browser, and users will be able to take advantage of a reliable browser right from the box.
Source: https://www.bleepingcomputer.com/news/microsoft/microsoft-edge-rolls-out-in-windows-10-2004-via-windows-update/